Mazda 2003 B2300 Owner's Manual page 34

Entertainment Systems
Don't:
Expose discs to direct sunlight or heat sources for extended periods
of time.
Insert more than one disc into each slot of the CD changer magazine.
Clean using a circular motion.
CD units are designed to play commercially pressed 12 cm (4.75 in)
audio compact discs only. Due to technical incompatibility, certain
recordable and re-recordable compact discs may not function
correctly when used in CD players. Irregular shaped CDs, CDs
with a scratch protection film attached, and CDs with homemade
paper (adhesive) labels should not be inserted into the CD player.
The label may peel and cause the CD to become jammed. It is
recommended that homemade CDs be identified with permanent
felt tip marker rather than adhesive labels. Ball point pens may
damage CDs. Please contact your dealer for further information.
AUDIO SYSTEM WARRANTY AND SERVICE
Refer to the Warranty Guide for audio system warranty information. If
service is necessary, see your authorized Mazda dealership.
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